methyl [5-acetamido-2,4,7,8,9-penta-O-acetyl-3-bromo-3-
2H-3,5-dideoxy-D-glycero-D-galacto-non-2-ulopyranos]onate 在
偶氮二异丁腈 、
三正丁基氢锡 作用下,
以
甲苯 为溶剂,
反应 2.0h,
生成
methyl [5-acetamido-2,4,7,8,9-penta-O-acetyl-3-(S)-3-2H-3,5-dideoxy-D-glycero-β-D-galacto-non-2-ulopyranos]onate 、
methyl [5-acetamido-2,4,7,8,9-penta-O-acetyl-3-(S)-3-2H-3,5-dideoxy-D-glycero-α-D-galacto-non-2-ulopyranos]onate